question_answer

Radha moves towards South-east a distance of 7 km, then she moves towards West and travels a distance of 14 m. From here, she moves towards North-west a distance of 7 m and finally she moves a distance of 4 m towards East and stood at the point. How far is the starting point from where she stood?

A)  3 m                 

B)  4 m

C)  10 m               

D)  11 m

Correct Answer: C

Solution :

The movements of Radha are as shown in figure. Clearly. Radha's distance from the starting pointe \[O=OD=(OC-CD)\]     \[=(AB-CD)\]     \[=(14-4)\,m\]     \[=10\,m.\]